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A photometric survey for variable stars in the globular cluster M5
J. Kaluzny, I. Thompson, W. Krzeminski +1
We present the results of a photometric survey for variable stars in the nearby globular cluster M5. A 14.8x22.8 arcmin^2 field centered on the cluster was monitored for a total of…
Warsaw Variability Surveys
Janusz Kaluzny
Four large/medium size photometric surveys are being conducted by Warsaw astronomers: Warsaw-LCO survey of globular clusters, OGLE, DIRECT and ASAS. In this contribution we provide…
Variable stars in the field of the open cluster NGC 7789
B. J. Mochejska, J. Kaluzny
We present the results of our search for variable stars in the intermediate-age open cluster NGC 7789. We have found 45 variable stars: 35 eclipsing binaries, five pulsating variab…
BVRI Observations of the Optical Afterglow of GRB 990510
K. Z. Stanek, P. M. Garnavich, J. Kaluzny +2
We present observations of the optical counterpart to the Gamma-Ray Burst (GRB) 990510 obtained with the Las Campanas 1.0-m telescope between 15 and 48 hours after the burst…
DIRECT Distances to Nearby Galaxies Using Detached Eclipsing Binaries and Cepheids. V. Variables in the Field M31F
B. J. Mochejska, J. Kaluzny, K. Z. Stanek +2
We undertook a long term project, DIRECT, to obtain the direct distances to two important galaxies in the cosmological distance ladder -- M31 and M33 -- using detached eclipsing bi…
DIRECT Distances to Nearby Galaxies Using Detached Eclipsing Binaries and Cepheids. IV. Variables in the Field M31D
J. Kaluzny, B. J. Mochejska, K. Z. Stanek +4
We undertook a long term project, DIRECT, to obtain the direct distances to two important galaxies in the cosmological distance ladder -- M31 and M33 -- using detached eclipsing bi…